TWI496695B - Adjustable sheet-separating structure - Google Patents

Description

Fine adjustment type paper roller mechanism

The present invention relates to a paper separation mechanism, and more particularly to a fine adjustment type separation roller mechanism.

Roller type paper-feeding/separating structure, the main function is to take out a single piece of paper and bring it into the machine. The action requirements are first to take the paper, and then to separate the paper. The purpose of the paper separation is that if there are more than two paper sources, the paper may be taken out more than one sheet, the mechanism must be designed with a paper separation function to ensure that only a single paper is brought in, and the excess paper is blocked.

The paper is placed on a pallet, and a spring is arranged under the pallet to press the pallet together with the paper, so that the pressure of the paper contacting the pickup roller and maintaining contact is called a paper take-up pressure. When the pickup roller rotates, the paper that it contacts is taken out by friction, which is called picking up the paper. If the source paper is placed more than two sheets, there may be more than one sheet of paper taken by the rollers. Therefore, after the paper is taken out, more than two sheets of paper are taken out through the mechanism, and the final purpose is to allow only a single sheet of paper to enter the machine. Among the types of the separation mechanism, the roller type has the advantages of good reliability, durability (long life), no vibration and noise. The principle of separation is not detailed here, and its structure is a one-way torque roller and is in contact with the pickup roller.

Between the separation roller and the pickup roller, the two cylinders are in contact and form an imaginary line, which is called a Nip line, and the direction of the line is perpendicular to the direction in which the paper travels. However, it is almost impossible to achieve zero error due to the fabrication and assembly of the parts. Since the axes of the two rollers are not parallel, especially when the structure is limited by certain factors and designed to be asymmetric, it is easier to cause two in the case of stress. The relative skew of the shaft. Since the two rollers are not rigid, even if they are not completely parallel, the two rollers will press a contact area close to the imaginary line due to the micro-compression. This line will not be true. Parallel to the axial direction of the roller. Nip line that is not parallel to the axial direction of the roller. When the paper is fed, the force distribution and uneven direction of the clamping will directly affect the direction in which the paper travels and cause skew.

When the paper travels, because of uneven placement or mechanical factors, there are generally two kinds of remedies: one is the guiding regulation board, and the vertical flat plate on both sides of the source paper can be matched with the paper. Width adjustment, while limiting the lateral offset of the paper; second, after the paper is brought into the machine, it is corrected inside. However, if a certain degree of skew occurs during paper picking/splitting, the force of the paper head being gripped by the roller is large and cannot be guided by the guiding gauge plate, which causes the paper to be squeezed and bent. Excessive skew can not be completely corrected in the machine and may cause further problems such as wrinkle jams.

In view of this, the present invention provides an embodiment of a fine-adjusting paper separation roller mechanism, comprising: a paper take-up module, a paper separation seat, a paper separation roller, an adjustment frame, and a fulcrum structure. Wherein, the paper separation seat is located at a side of the paper take-up module, the paper separation seat comprises a first side and a second side, the first side is pivotally connected to the paper take-up module; the paper separation roller is located at the paper separation seat; The second side of the paper separation seat is disposed between the paper separation seat and the paper take-up module, and comprises a first end and a second end, the first end is pivotally connected to the paper separation seat; the fulcrum structure is connected to the adjustment frame and The paper module adjusts the position of the second end of the adjustment frame to rotate the first end relative to the fulcrum structure, and drives the separation of the separation plate to change the position of the separation roller relative to the paper take-up module.

The invention mainly changes the paper separation base into an adjustable structure, and slightly adjusts the axial direction by moving the fulcrum on one side of the rotating shaft of the paper separation seat, and changes the Nip line of the paper take-up roller and the paper separation roller. The paper is not skewed enough to be guided by the guiding plate and the correcting mechanism inside the machine. During the use, the position of the adjustment frame can be changed at any time to achieve the purpose of moving the separation roller, and locking with the locking member when adjusting to the proper position is simple and convenient.

Preferred embodiments of the present invention and their effects are described below in conjunction with the drawings.

Please refer to FIG. 1 , FIG. 2 and FIG. 3 for the first embodiment of the fine-tuning type separation roller mechanism disclosed in the present invention. The fine-adjusting paper separation roller mechanism 1 disclosed in the present invention comprises: a paper take-up module 2, a paper separation seat 4, a paper separation roller 5, an adjustment frame 6, and a fulcrum structure 7.

The paper take-up module 2 can be mainly composed of the paper take-up roller 21 and the base 22, and the take-up roller 21 is located on the base 22. The take-up roller 21 is mainly composed of the pickup roller 211 and the rotating shaft 212. The pickup roller 211 is disposed on the rotating shaft 212, and the two ends of the rotating shaft 212 are respectively pivotally connected to the base 22. The base 22 is provided with a groove 220 on one side thereof, and two sides of the groove 220 respectively extend with a first extending piece 221 and a second extending piece 222.

The paper separation base 4 is located at the side of the paper take-up module 2, wherein the paper separation base 4 is disposed at the recess 220 of the base 22, and the separation base 4 includes a first side 4a and a second side 4b, The one side 4a is pivotally connected to the paper take-up module 2, that is, the first extending piece 221 is pivotally connected to the base body 22; the second side 4b is adjacent to the second extending piece 222. In this case, the separating portion 42 is respectively provided with a pivoting portion 42 on the first side 4a and the second side 4b, and the pivoting portion 42 on the first side 4a is pivotally connected to the first extending piece 221 of the base 22.

The separation roller 5 is located in the separation tray 4 and corresponds to the pickup roller 21, and can be mainly composed of the separation roller 51 and the rotating shaft 52. The separation roller 51 is disposed on the rotating shaft 52, and the two ends of the rotating shaft 52 are respectively pivoted. Connected to the separation base 4.

The adjustment frame 6 is located on the second side 4b of the separation tray 4 and is disposed between the separation tray 4 and the paper take-up module 2. In this embodiment, the adjustment frame 6 is located on the second side 4b of the separation tray 4 Between the second extension pieces 222 of the seat body 22. The adjusting frame 6 is an elongated plate body, and includes a first end 6a and a second end 6b. The first end 6a of the adjusting frame 6 is pivotally connected to the pivoting portion 42 of the second side 4b of the separating seat 4.

The fulcrum structure 7 connects the adjusting frame 6 and the paper take-up module 2, adjusts the position of the second end 6b of the adjusting frame 6 to rotate the first end 6a relative to the fulcrum structure 7, thereby driving the paper separating base 4 to change and changing the separating roller 5 relative to the position of the paper take-up module 2. In the present embodiment, the fulcrum structure 7 is located between the first end 6a and the second end 6b, and can be mainly composed of the concave portion 71 and the convex portion 72, which are respectively located on the second extending piece 222 of the adjusting frame 6 and the base 22. For example, as shown in FIG. 2, the concave portion 71 is located on the adjustment frame 6, and the convex portion 72 is located on the second extension piece 222 of the base body 22, and the convex portion 72 on the second extension piece 222 is fitted into the concave portion 71 on the adjustment frame 6 The mounting bracket 6 and the base 22 are connected; or, for example, the convex portion 72 is located on the adjusting frame 6, and the concave portion 71 is located on the second extending piece 222 of the base 22, so that the convex portion 72 on the adjusting frame 6 is embedded in the second extending portion. The recessed portion 71 on the upper portion 222 connects the mount 6 to the base 22.

In this embodiment, the adjusting frame 6 can be further provided with a locking hole 64 at the second end 6b. The second extending piece 222 of the base 22 can further be provided with a positioning hole 224 corresponding to the locking hole 64, and The width of the positioning hole 224 is larger than the width of the locking hole 64. When the adjusting frame 6 is overlapped with the second extending piece 222 of the base 22, the locking hole 64 and a part of the positioning hole 224 are overlapped. The foregoing description of the structure of the locking hole 64 and the positioning hole 224 is merely an example, and the present invention is not limited thereto, or the locking hole and the positioning hole may be alternately arranged, for example, the second extending piece 222 of the base 22 . The fixing frame 6 can be provided with a locking hole corresponding to the locking hole (not shown), and the width of the positioning hole is larger than the width of the locking hole. When the adjusting frame 6 is overlapped on the seat body 22 The second extension piece 222 has a locking hole and a part of the positioning holes overlapped.

As shown in FIG. 1 , FIG. 4 and FIG. 5 , the second end 6 b of the adjustment frame 6 is first moved during assembly or adjustment so as to be rotated to a proper position centering on the fulcrum structure 7 so that the first end 6 a is Rotating relative to the fulcrum structure 7, thereby driving the paper separation base 4 pivotally connected to the first end 6a to change the separation The position of the roller 5 relative to the pickup roller 21 is used to move one of the side fulcrums of the separation tray 4 to finely adjust its axial direction, and to change the nip line of the pickup roller 21 and the separation roller 5. Thereafter, after the locking component 9 passes through the locking hole 64 and slides into the positioning hole 224 to the position, the mounting bracket 6 and the base 22 are locked.

Please refer to FIG. 6 for a second embodiment of the fine-tuning type separation roller mechanism disclosed in the present invention. The difference between this embodiment and the previous embodiment is that the present embodiment is further provided with the indicator member 65 and the scale unit 25. In order to make the user more aware of the extent to which the adjustment frame 6 is rotated, the indicator member 65 is extended on the second end 6b of the adjustment frame 6, and the second extension piece 222 of the base body 22 is provided with the scale unit 25. Here, the indicator member 65 has a tip shape, and the scale unit 25 is a plurality of printing scales, for example, a small printing scale can be set every mm, and a large printing scale is set every five mm for the user to recognize, but the invention Not limited to this. When the user moves the second end 6b of the adjustment frame 6 to rotate around the fulcrum structure 7, the printing scale of the scale unit 25 pointed by the indicator member 65 changes, and the user can judge and adjust according to the scale unit 25. The degree of rotation of the frame 6 makes it more convenient to assemble or adjust.

The foregoing description of the structure of the indicator member and the scale unit is merely an example. The present invention is not limited thereto. According to the actual structural design, the indicator member may be disposed on the second extension piece 222 of the base 22, and the scale unit may be set. At the second end 6b of the adjustment frame 6.

Please refer to FIG. 7 and FIG. 8 for a third embodiment of the fine-tuning type separation roller mechanism disclosed in the present invention. The difference between this embodiment and the previous embodiment lies in the structure of the fulcrum structure 7. In this embodiment, the fulcrum structure 7 is located at the side of the first end 6a of the adjusting frame 6, so that the fulcrum structure 7, the first end 6a and the second end 6b of the adjusting frame 6 are arranged in a triangle, and the whole is arranged. It is roughly an isosceles triangle. When the second end 6b of the adjustment frame 6 is moved, it is rotated around the fulcrum structure 7 To the appropriate position, the first end 6a is rotated relative to the fulcrum structure 7, thereby driving the paper separation base 4 pivotally connected to the first end 6a to change the position of the separation roller 5 relative to the pickup roller 21, thereby One side fulcrum of the paper separation base 4 is moved to adjust its axial direction, which is the same as the foregoing, and will not be described here. The difference in this embodiment is that the left and right pressure difference between the two rollers can also be adjusted, except that the foregoing mainly changes the relative angles of the separation roller and the pickup roller. When the pressure between the two rollers is different, it will also affect the paper transport direction, and thus achieve the purpose of adjustment.

The invention mainly changes the paper separation base into an adjustable structure, and adjusts the axial direction by moving the fulcrum on one side of the rotating shaft of the paper separation seat, and changes the nip line of the paper take-up roller and the paper separation roller, so that the Nip line is changed. The paper is not skewed enough to be guided by the guiding plate and the correcting mechanism inside the machine. During the use, the position of the adjustment frame can be changed at any time to achieve the purpose of moving the separation roller, and locking with the locking member when adjusting to the proper position is simple and convenient.

Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention are encompassed by the present invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

1‧‧‧ fine-tuning separation roller mechanism

2‧‧‧ Paper take-up module

21‧‧‧ Pickup roller

211‧‧‧ Pickup wheel

212‧‧‧ shaft

22‧‧‧

221‧‧‧First extension

222‧‧‧Second extension

224‧‧‧Positioning holes

25‧‧‧Scale unit

4‧‧ ‧ paper seat

4a‧‧‧ first side

4b‧‧‧ second side

42‧‧‧ pivotal department

5‧‧‧Dividing roller

51‧‧‧Separator

52‧‧‧ shaft

6‧‧‧Adjustable frame

6a‧‧‧ first end

6b‧‧‧second end

64‧‧‧Lock hole

65‧‧‧Instructions

7‧‧‧ fulcrum structure

71‧‧‧ recess

72‧‧‧ convex

9‧‧‧Locking components

Fig. 1 is a schematic view showing the appearance of a first embodiment of the present invention.

Fig. 2 is an exploded perspective view showing the first embodiment of the present invention.

Figure 3 is an exploded perspective view of the first embodiment of the present invention from another perspective.

Fig. 4 is a schematic view (1) showing the state of the first embodiment of the present invention when it is adjusted.

Fig. 5 is a schematic view (2) showing the state of the first embodiment of the present invention when it is adjusted.

Figure 6 is a schematic view showing the appearance of a second embodiment of the present invention.

Figure 7 is a schematic view showing the appearance of the third embodiment of the present invention.

Figure 8 is a partial side elevational view of a third embodiment of the present invention.

1‧‧‧ fine-tuning separation roller mechanism

2‧‧‧ Paper take-up module

21‧‧‧ Pickup roller

211‧‧‧ Pickup wheel

212‧‧‧ shaft

22‧‧‧

221‧‧‧First extension

222‧‧‧Second extension

224‧‧‧Positioning holes

4‧‧ ‧ paper seat

4a‧‧‧ first side

4b‧‧‧ second side

42‧‧‧ pivotal department

5‧‧‧Dividing roller

51‧‧‧Separator

52‧‧‧ shaft

6‧‧‧Adjustable frame

6a‧‧‧ first end

6b‧‧‧second end

64‧‧‧Lock hole

7‧‧‧ fulcrum structure

71‧‧‧ recess

72‧‧‧ convex

9‧‧‧Locking components

Claims (10)

A fine-adjusting separation roller mechanism includes: a paper take-up module; a paper separation seat located at a side of the paper take-up module, the paper separation base including a first side and a second side, the first One side is pivotally connected to the paper take-up module, and a paper roll roller is located in the paper separation seat; an adjustment frame is located on the second side of the paper separation seat and is disposed on the paper separation seat and the paper take-up mode Between the groups, the adjustment frame includes a first end and a second end, the first end is pivotally connected to the paper separation seat, and a point structure connecting the adjustment frame and the paper take-up module, and adjusting the Adjusting the position of the second end of the frame to rotate the first end relative to the fulcrum structure, driving a side fulcrum of the paper separation seat to finely adjust the axial direction of the paper separation seat, and changing the paper separation roller relative to the paper take-up The location of the module. The fine-adjusting paper separation roller mechanism of claim 1, wherein the paper take-up module comprises a paper take-up roller and a body, the paper take-up roller is located at the seat body, and the paper take-up roller corresponds to the paper take-up roller. The fine-adjusting separation roller mechanism of claim 2, wherein the fulcrum structure comprises a concave portion and a convex portion, the concave portion is located at the adjusting frame, the convex portion is located at the seat body, and the convex portion is embedded in the concave portion to connect the Adjust the frame and the seat. The fine-adjusting separation roller mechanism of claim 2, wherein the fulcrum structure comprises a concave portion and a convex portion, the concave portion is located at the seat body, the convex portion is located at the adjusting frame, and the convex portion is embedded in the concave portion to connect the Adjust the frame and the seat. The fine-adjusting separation roller mechanism of claim 2, wherein the adjustment frame further comprises a locking hole at the second end, the seat body comprises a positioning hole corresponding to the locking hole, the positioning hole width The degree is greater than the width of the locking hole, and a locking component passes through the locking hole and slides into the positioning hole to fix the positioning frame to lock the adjusting frame and the seat body. The fine-adjusting separation roller mechanism of claim 5, wherein the adjustment frame further comprises an indication member located at the second end, the base body comprising a scale unit, the indicator member being directed to the scale unit. The fine-adjusting separation roller mechanism of claim 2, wherein the adjustment frame further comprises a positioning hole at the second end, the base body comprises a locking hole corresponding to the locking hole, the positioning hole The width is greater than the width of the locking hole, and a locking component passes through the locking hole and slides into the positioning hole to fix the positioning frame and the seat. The fine-adjusting separation roller mechanism of claim 7, wherein the adjustment frame further comprises a scale unit located at the second end, the base body comprising an indicator member, the indicator member being directed to the scale unit. The fine-tuning separation roller mechanism of claim 1, wherein the fulcrum structure is located between the first end and the second end. The fine-adjusting separation roller mechanism of claim 1, wherein the fulcrum structure is located at a side of the first end, and the fulcrum structure, the first end and the second end are arranged in a triangle.